Instruction/ maintenance manual of the product 256200 Graco
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Instructions - Parts List T1 2:1 Ratio Transfer Pump For use with polyurethane foam, polyurea, and solv ent-borne and water-borne ma terials. For professional use only. Model 256200 55 Gal lon (200 Liter) Dr um Size 180 psi (1.2 MPa, 12 bar) Maximum Air Working Press ure 360 psi ( 2.
2 312766N Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Isocyanate H azard . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Moisture S ensit ivity o f Isocya nates . . . . . . . . . . . 5 Foam Self- Ignition .
Warnings 312766N 3 Warnings The fol lowing war nings ar e for the setup, use, grou nding, mai ntenance , and repa ir of this eq uip- ment. The excla mation point symbol aler ts you to a ge nera l warni ng an d the hazard symbo l refe rs to pro cedure- specifi c risk.
Warnings 4 312766N EQUIPMENT MISUSE HAZARD Misuse can cause death or se rious injury. • Do not op erat e the u nit wh en fat igue d or un der th e infl uence of dr ugs or a lcoho l. • Do not excee d the m aximu m wo rkin g pressu re or tempe ratur e rati ng of the low - est rated system componen t.
Isocyanate Hazard 312766N 5 Isocyanate Hazard Moisture Sensitivity of Isoc yanates Isocyanates (ISO ) are catalyst s used in two compon ent fo am and polyu rea coat ings. ISO will rea ct wi th m ois ture (su ch as hum idi ty) to form small, hard, a brasive crystals, which becom e sus pended in the f luid.
Isocyanate Hazar d 6 312766N Foam Se lf-Ign ition Keep Components A and B Separate Changi ng Materia ls • Whe n changi ng mate rials, fl ush th e equi p- ment multiple time s to ensure it is thor- oughly clean . • Check with your mate rial ma nufac tur er for chemical compa tibility.
Typ ical I nst allat ion 312766N 7 Typical Installation Typical Install ation withou t Circulatio n Key for F IG . 1. A Reactor ® Proporti oner B Heated Hose C Fluid Te mperature Sensor (FTS) D Heated Whip Hose EF u s i o n ® Spra y G un F Proporti oner and Gun Air Supply Hose G Feed Pump Air Supply Lines 3/8 i n.
Typica l Install ation 8 312766N Typical Ins tallatio n with Circulation Key for F IG . 2. A Reactor Pr oportioner B Heated Hose C Fluid Te mperature Sensor (FTS) D Heated Whip Hose E Fusion Spray Gun F Proporti oner and Gun Air Supply Hose G Feed Pump Air Supply Lines 3/8 in.
Typ ical I nst allat ion 312766N 9 Typical Ins tallatio n for Lubrication Applications Key for F IG . 3. AA Pump Air Regulator AB Air Line Lubri cator AC Ai r Line Filter AD Bleed-Type Master Air Valv.
Insta lla tion 10 312766N Installation System Accessories Refer to F IG . 3 an d the Accessories on pa ge 24. Air Line Accessories I nstall th e fol lowing accessories i n the or der shown in th e Typ.
Setup 312766N 11 Setup 1. Apply thread sealant to the male threads of the ai r ne edle val ve (5 4) and the qu ick dis- connect f itting (55). I nstall into inlet port (AK). 2. Apply threa d sealant t o the male ou tlet fit- ting (BC ) (not supplie d) an d insert into t he outlet port (A L).
Setup 12 312766N 5. Inst all ai r line (3/ 8 in. (7 6 mm) ID min imum) with quick discon nect air coupler (56). 6. Connec t a grou nded fluid hose (AH) to th e 1/2 npt(f ) flu id outl et ( AL). In a cir culat ing system, remove th e pipe plug (2) and con- nect a fluid re turn line to t he 3/8 npt(f ) return po rt (AM).
Operation 312766N 13 Operation Pressure Re lief Procedure 1. Shut off th e air t o the pump. 2. Clo se the bl eed- type ma ster air va lve (AD) . 3. Ho ld a meta l part of t he disp ense va lve firmly to a grou nded me tal p ail. Tri gger th e valv e to reli eve press ure.
Operation 14 312766N Daily Startup 1. Veri fy that t he air needle valve (54) is closed. 2. Co nnect the air line qu ick disc on nect co u- pler ( 55) t o the t ransfer pump . 3. Turn on the mai n air supply. 4. Slow ly op en the ai r need le val ve unti l the transfer pum p runs slowly.
Repair 312766N 15 Repair Before y ou start • Hav e all t he ne cessary re pair p arts on hand. • Clean all part s with a comp atible so lvent . Inspect p arts fo r wear o r da mage an d replac e as ne eded. • Flush the pump, if po ssible. Sto p the pump at th e bott om o f its strok e.
Repair 16 312766N 3. Use a pliers on the top plat e of the air valve piston (38) a nd a wr ench on the piston r od (35) to uns crew the a ir val ve pis ton from the pi ston rod . See F IG . 11. 4. Remove washer (10) , lower spring (9), and gasket (27).
Repair 312766N 17 3. Rein stall th e sprin g (7 ) and g asket ( 27) on the cyli nder ca p (3 4) and s cre w the cap onto the cylind er (8). Screw the cylinder into t he ai r moto r base (13). See F IG . 10. Pump Lower Disa ssemb ly 1. Uns crew the air mo tor con necting ring (1 5).
Repair 18 312766N 4. Push down on the p ump conn ectin g rod (37) un til fluid piston a ssembly is clear of displ acement pump frame (36) . Pull the piston assembl y and co nnectin g rod ou t of the fra me. Re move the be aring (31) and seal (51) from th e frame.
Repair 312766N 19 Pump Lower Re assemb ly 1. Lu brica te pac king (1 7) an d bearin g (18) with no . 2 li thium -bas ed grea se. 2. Insta ll the bearin g (1 8), a nd cup pa cking (17) with th e lips facin g down on the pump connecti ng rod (37). See F IG .
Repair 20 312766N 8. Install intake valve (29). a. For Ser ies A an d B Pu mps: Apply thread locker to thre ads of intake valve (29). To rque to 10-1 5 ft-lb s (13.5-2 0 N•m). b. For Series C Pumps: Lubric ate o-r ing (59) an d inst all thre ad locki ng com- pound to th reads of inta ke va lve (29 ).
Troubleshooti ng 312766N 21 Troubleshooting Problem Cause Solution The pump f ails to operate . Dirty or worn air moto r. Clean, se rvice. Inadequ ate a ir supp ly or restricted lines. Clean l ines or increase the ai r supply (see Technical Da ta). Closed or clog ged a ir valv es.
Parts 22 312766N Parts T1 2:1 Ratio Transfer Pump, 256200 Torque to 30-35 f t-lb (41-48 N •m) Lips fa ce down Lips fa ce up Groo ves fa ce do wn Use ass embly to ol 24B9 17 6. Th in, me dium , and thic k refers to the rel ative cross se ction thicknes s of t he o-rin gs.
Parts 312766N 23 T1 2:1 Ratio Transfer Pump, 256200 Comp lete T1 pum p repair kit 24X055 contai ns repair kits 2 47958 a nd 24K363 . † Parts include d in r epair k it 247 958. ◆ Parts incl uded in r epair kit 24K 363. ✖ Indica tes parts not shown (shipp ed loo se).
Accessorie s 24 312766N Accessories Grounding Clamp Bleed-Type Master Air Val ve 300 psi (2.1 MPa, 21 bar) Maximum Worki ng Pressure Air Line Filter 250 psi (1.7 MPa, 17.5 bar) Maximum Working Pressure Air Line Lubricator 250 psi (1.7 MPa, 17.5 bar) Maximum Working Pressure Air Line Filter and Regulator 180 psi (1.
Accessories 312766N 25 Air Regulator and Gauge 300 psi (2.1 MPa, 21 bar) Maximum Worki ng Pressure Fluid Drain Valve 500 psi (3.5 MPa, 35 bar) Maximum Worki ng Pressure Insert Tool 24B917 (4 in. long) Fluid Pressure Regulator 250 psi (1.7 MPa, 17.5 bar) Maxi mum Working Pressure Fluid Filter 300 psi (2.
Dimensions 26 312766N Dimensions 51.5 in . 33.7 in. 1/4 npt( f) Air In let 1/2 npt( f) Fluid Out let (85.6 cm ) TI171 70a (130.8 cm) 43.0 in . (109.2 cm).
Technical Dat a 312766N 27 Technical Data Pressure ratio . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1 Maximum fluid working pressure . . . . . . . . . . . 360 psi (2.5 MPa, 2 5 bar) Maximum air inlet pressure . . . . . . . . . . . . . . . 180 psi (1.
Technica l Data 28 312766N Performan ce Chart Calculate Fluid Outlet Pressure (black curves) To cal culate f luid ou tlet press ure (M Pa/ba r/psi ) at a specifi c fl uid fl ow (l pm/gpm ) and oper atin g air pressu re (MPa/ba r/p si), use the f ollow ing instru ctions and pump da ta chart.
Technical Dat a 312766N 29.
All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco rese rves the right to make changes at any time without notice. For patent information, see ww w.graco.com/patents.
An important point after buying a device Graco 256200 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco 256200 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco 256200 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 256200 you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 256200 will certainly help you make a decision on the purchase.
If you already are a holder of Graco 256200, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco 256200.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 256200. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 256200 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
